Live and VOD media now use the same trimming and clipping tool in the JWX dashboard. The unified controls, timeline, and workflow make it easier to create precise clips from live events or edit VOD media.

New Features

This update includes the following improvements:

• Unified trimming and clipping tool: Use the same dashboard tool to create clips from Broadcast Live and Instant Live events or trim and clip VOD media from the media details page.
• Frame-accurate clipping: Clips created from Broadcast Live, Instant Live, and CMAF VOD media now begin and end on the exact frames you select, helping you capture the intended moment without padding or re-cutting. 

• Expanded keyboard shortcuts: Keyboard shortcuts are now available for both live and VOD media. Use them to:

  • (New) Zoom in, zoom out, or reset the timeline zoom using =, -, and 0
  • Step one frame backward or forward using , and .
  • Jump five seconds backward or forward using ← and →
  • Set the in and out points using i and o
  • Play or pause using space
• In-tool shortcut legend: View a complete list of keyboard shortcuts directly within the trimming and clipping tool.

NOTE: Frame-accurate clipping and frame-step keyboard shortcuts apply only to Broadcast Live, Instant Live, and CMAF VOD media. Traditional VOD clips and trims remain segment-accurate.

Learn how to trim a video or create a clip, create a Broadcast Live clip, or create a clip from a past Instant Live event.

You can now manage captions and subtitles for CMAF VOD media using the same text tracks endpoints available for Traditional VOD. Upload a WebVTT or SRT file, and JWX automatically packages and delivers the track in streaming manifests and as a sidecar WebVTT file without requiring you to create a .cmft file.

New Features

This update includes the following capabilities:

• Text track management for CMAF VOD: Use the text tracks endpoints to create, upload, edit, publish, unpublish, and delete WebVTT or SRT captions and subtitles. JWX packages each published track as a CMAF text rendition and includes it in HLS and DASH manifests.
• Automatic text track extraction: When you upload CMAF VOD media, JWX automatically extracts captions and subtitles embedded in the source file and creates manageable text tracks from them.
• Sidecar WebVTT delivery: JWX also provides each caption or subtitle track as a sidecar WebVTT file that matches the version delivered in the streaming manifests. Use the direct WebVTT URL for syndication or playback through third-party players.
• Support for pre-encoded .cmft files: Continue using the custom text renditions endpoints when supplying your own pre-encoded .cmft files. These tracks are delivered only through streaming manifests and are not available as sidecar WebVTT files.

This update applies only to captions and subtitles tracks. Chapters and metadata tracks are unchanged.

NOTE: CMAF VOD text track management is currently available only through the Management API v2. Support for managing these tracks in the JWX dashboard and editing text renditions from live-to-VOD captures and CMAF VOD clips will be added in future releases.

You can now replace the source file of an existing CMAF VOD media item without deleting and recreating it. Re-uploading preserves the media ID, metadata, and delivery URLs. This allows playlists, feeds, and downstream integrations to continue working without interruption.

New Features

CMAF VOD now supports the following re-upload capabilities:

• Media re-uploads: Use the re-upload endpoint to upload a new source file for an existing CMAF VOD media item. JWX preserves the media ID, metadata (such as the title and description), and delivery URLs. Playback switches to the new version after processing is complete.
• Automatic rendition regeneration: By default, JWX generates new renditions using the transcoding config from the media item’s previous version. If your site has multiple transcoding configs, you can specify a different config for the re-upload.
• Hosting type conversion: Use a re-upload to change a media item’s hosting_type from hosted (Traditional VOD) to renditions (CMAF VOD), or from renditions to hosted.
• Re-upload status: Use the media versions endpoints to confirm that a re-upload succeeded.

The existing re-upload limitations for audio and caption tracks still apply.

This update helps you:

• Deliver corrected masters, edits, and compliance cuts without breaking playlists, feeds, or integrations
• Maintain a consistent rendition ladder across re-uploads
• Manage CMAF VOD media using the same re-upload workflow available for Traditional VOD

NOTE: CMAF VOD re-uploads are currently available only through the Management API v2. Support for re-uploading through the JWX dashboard will be added in a future release.

Seek thumbnails for CMAF VOD media are now generated at intervals that scale with video duration, at most 10 seconds apart, providing more accurate previews as viewers scrub through content on web, mobile, and connected TV (CTV) devices.

Previously, JWX generated a maximum of 80 seek thumbnails per video, which could result in sparse previews for longer content. CMAF VOD media now has no thumbnail limit.

New Features

This update includes the following improvements for CMAF VOD media:

• More frequent thumbnails: JWX generates seek thumbnails at intervals based on video duration — at most every 10 seconds for long-form content and as often as every 2 seconds for shorter videos.
• No thumbnail limit: Long-form content is no longer restricted to 80 thumbnails per video.
• Improved cross-platform previews: Viewers receive more accurate seek previews across web, mobile, and CTV.
• New Delivery API endpoint: Retrieve the WebVTT thumbnail track directly using GET /v2/sites/{site_id}/media/{media_id}/thumbstrip.vtt. The track also remains referenced in delivery endpoint responses.
• Automatic support for existing media: The improvement applies to existing CMAF VOD media without requiring reprocessing.

This update helps viewers navigate long-form content more precisely and quickly identify the section they want to watch.

To learn more, see the Delivery API reference.

NOTE: This update applies only to CMAF VOD media. Seek thumbnails for Traditional VOD media are unchanged.

Media API v2 now returns a 400 parse error when a request contains a malformed or unsupported query parameter instead of dropping the invalid portion and returning results.

Bug Fix

Media API v2 query parameter validation: Requests to Media API v2 endpoints that include a malformed or unsupported query parameter now return a 400 response with a parse error message. 

Previously, the invalid portion of the query was dropped and the API returned a 200 with results that did not reflect the intended filter. Responses now match what was actually requested, and errors surface at the point of the request rather than silently returning unfiltered results.

Media uploaded through the CMAF VOD workflow can now be transcoded automatically into a complete rendition ladder. You no longer need to create custom renditions separately for each audio and video rendition.

New Features

CMAF VOD offers the following new transcoding capabilities:

• Automatic rendition creation: Each upload uses a transcoding config to generate its rendition ladder automatically.

• Default transcoding config: Every site receives a default config based on the standard Traditional VOD template. It creates:

  • AVC video renditions at 1080p, 720p, 540p, 480p, 360p, and 270p, capped at 60 fps
  • AAC-LC stereo audio up to 192 kbps
  • An AAC-LC or E-AC3 5.1 surround track up to 512 kbps when the source contains multichannel audio
• Source-aware transcoding: JWX preserves the source frame rate, including fractional frame rates, and maintains the orientation of vertical video. Sources are never upscaled. For example, a 720p source produces renditions at 720p and below.
• Custom transcoding configs: Work with your JWX account team to create a custom config. You can set it as the site default for all uploads or apply it to an individual media item by providing its config ID when creating the media through Management API v2. If no config is assigned to the media item, JWX uses the site default.
• Manual rendition creation: Your account team can create an empty config that bypasses automatic rendition creation. You can then create each rendition through the custom rendition endpoints.
• Rendition edits after automatic creation: A transcoding config does not lock the rendition ladder. After JWX creates the renditions, you can delete an existing rendition or use the custom audio and video rendition endpoints to add individual renditions alongside those created automatically.
• Transcoding config endpoints: New Management API v2 endpoints let you list a site’s transcoding configs and retrieve a specific config by ID, allowing you to confirm its settings before uploading media.
• Premium transcoding: Non-AVC codecs, 4K video, and audio loudness normalization require a premium transcoding entitlement and incur additional costs. If the entitlement is removed, JWX continues creating renditions with standard features and ignores any premium settings instead of failing the transcoding job.

This update helps you:

• Create complete rendition ladders without configuring each rendition individually
• Standardize transcoding across your site
• Customize transcoding for specific workflows or media items
• Retain full control over renditions, whether they are created automatically or manually.

To learn more, see the CMAF VOD overview.

NOTE: Automatic rendition creation is currently available only through the Management API v2. Support for uploading through the JWX dashboard will be added in a future release.

Use the v2 Management API to retrieve media versions and identify a media asset’s active version.

New Feature

You can now retrieve a list of media versions for a media item and get information about a specific media version through the v2 Management API.

A media version represents a distinct uploaded version of a media asset. When an asset is re-uploaded, a new version is created. Only one version can be active at a time.

FAST analytics now include a Channel ID field, making it easier to attribute streaming and ad insertion activity to individual FAST channels.

New Feature

A new Channel ID (channel_id) parameter is now available in FAST analytics, giving you a unique identifier for each FAST channel (also known as a Pop-up Channel). The parameter is populated only for VOD or live media items that belong to a FAST channel and is NULL for all other media items.

The channel_id column is available across the following analytics datasets:

• Streaming Data
• Streaming Monthly Aggregates
• Ad Insertion Data
• Ad Insertion Monthly Aggregates

FAST channel data is also available in the JWX dashboard:

• Custom reports include a new FAST Channel (Yes/No) dimension.
• The Analytics Overview page now lets you filter the Streaming and Ad Insertion tabs by FAST channel from the Media format filter.

Dashboard users can now view all motion thumbnails generated during a reupload and select one to use as the poster image.

New Feature

For reuploaded media items, dashboard users can view the motion thumbnails generated from the first 10 seconds of the uploaded video and select one to promote as the poster image.

Management API users can access this existing functionality through the List thumbnails and Update a thumbnail endpoints.

You can now upload a source file for a CMAF VOD media item and use JWX to transcode custom audio and video renditions. Previously, the CMAF VOD workflow required you to supply pre-encoded renditions.

New Features

CMAF VOD offers the following new features:

• Source file uploads: Upload an original media file through Management API v2.
• Custom transcoding: Create individual audio and video renditions from the uploaded source file, with control over each rendition’s configuration.
• Existing delivery capabilities: Deliver transcoded renditions using CMAF packaging, HLS or DASH, with or without DRM. Transcoded media also supports geo restrictions, SSAI, clipping, and streaming analytics.

This update helps you:

• Simplify CMAF VOD ingestion by uploading a single source file
• Create custom rendition ladders without pre-encoding media externally
• Use existing CMAF VOD delivery and monetization capabilities

To learn more, see our documentation. 

NOTE: Automatic rendition ladder creation and CMAF VOD source uploads through the JWX dashboard will be available in a future release.